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M-Xylene
From Wikipedia, the free encyclopedia
- The correct title of this article is m-Xylene. The initial letter is shown capitalized due to technical restrictions.
| m-Xylene | |
|---|---|
 |
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| Common name | m-Xylene |
| IUPAC name | m-Xylene |
| Other names | m-Xylol 1,3-Dimethylbenzene |
| Chemical formula | C8H10 |
| Molecular weight | 106.16 amu |
| CAS number | 108-38-3 |
| Boiling point | 139°C |
| Melting point | -48°C |
| Relative Density (water =1) | 0.86 |
m-Xylene is an aromatic hydrocarbon, based on benzene with two methyl substituents.
It is an isomer of o-xylene and p-xylene. The m stands for meta, meaning the two methyl substituents are at locants 1 and 3 on the aromatic ring.
The major chemical use of metaxylene is in the manufacture of isophthalic acid, which is used as a copolymer to alter the properties of Polyethylene terephthalate (PET) making PET more suitable for the manufacture of soft drinks bottles.
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